Chapter 2
4 SCS 660 & 660M Serial Interface for Granular Applications Installation & Service Manual
Unit Definitions and Conversions
Unit of Measure Definitions
Unit of Measure Conversions
To convert the METER CAL value into the a unit of measure, divide the original number printed on the Flow
Meter label by the desired conversion unit of measure value.
Abbreviation Definition Abbreviation Definition
PPM Pounds per Minute m Meter
kg/min Kilograms per Minute MPH Miles per Hour
PPA Pounds per Acre km Kilometers
kg/ha Kilograms per Hectare km/h Kilometers per Hour
PPK Pounds per 1,000 Square Feet US Volume per Acre
mm Millimeters SI Volume per Hectare
cm Centimeters TU Volume per 1,000 Square Feet
dm Decimeters [ ] Metric Numbers
Length Area
• 1 millimeter (mm) = 0.039 inches • 1 square meter = 10.764 square feet
• 1 centimeter (cm) = 0.393 inches • 1 hectare = 2.471 acres or 10,000 square meters
• 1 meter (m) = 3.281 feet • 1 acre = 0.405 hectares or 43,560 square feet
• 1 kilometer (km) = 0.621 miles • 1 square mile = 640 acres or 258.9 hectares
• 1 inch = 25.4 mm or 2.54 cm
• 1 mile = 1.609 km
Dry Conversion Volume
• Kilograms x 2.2 = Pounds • 1 cubic meter = 1000 liters
• Pounds x 0.455 = Kilograms • 1 cubic centimeter - 1 milliliter
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